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Category

Published on

25 Oct 2005

Abstract

Nanoparticles have unique physical and chemical properties that make them very useful for
biological and chemical sensing. For example, colloidal gold has been used as an optical transducer
for antibody based sensing for over twenty years and is the basis for a many of the point-of-use
diagnostic assays currently available to the general public. Recent developments in nanoparticle
synthesis now give us greater control over the physical and chemical properties of nanometer scale
particles. For example, nanorodsof defined shape and size can be readily synthesized from one or
more materials using templatedsynthesis techniques. This presentation will review the physical
basis for the optical and magnetic properties of nanoparticles; developments in nanoparticle
synthesis and assembly technologies; and advances in the development of diagnostic devices based
on novel magnetic microparticles.

Bio

Gil Lee is an Associate Professor of Chemical Engineering and Biomedical Engineering at Purdue
University, where his teaching and research center on the fields single molecule measurement, and
the development of new modes of biological sensing based on magnetic particles. Professor Lee's
work has been recognized by several awards, most recently, from the Federal Laboratory
Consortium Award for Excellence in Technology Transfer in recognition of his contributions to
Single Molecule Biosensors.